Amritsar Airport: Flight services at the Amritsar airport were disrupted for about three hours after the air traffic control (ATC) tower spotted a sudden movement of three objects resembling drones in the airspace. Amritsar Airport: Flight services at the Amritsar airport were disrupted for about three hours after the air traffic control (ATC) tower spotted a sudden movement of three objects resembling drones in the airspace. Zee News :Business